Senior Vulnerability Researcher

Geneva / Annecy / Bochum /
Engineering – R&D /
/ On-site
Sonar’s industry leading solution solves the trillion-dollar challenge of bad code, equipping developers and organizations to reach a problem-free state in their codebase with Clean Code. Through its unique Clean as You Code methodology, the organization has empowered 7 million developers and 400,000 organizations across the globe to systematically deliver better software. 

The impact you can have

With your domain expertise and experience, you will shape an innovative Security R&D team at SonarSource. You will explore vulnerabilities and exploitation techniques that help to push our code analysis technology to the next level. By sharing your security research and findings with a worldwide community, you establish a reference of trust for code security and help developers to write clean code.

As a Senior Vulnerability Researcher, you will

    • Have fun and learn with world-class security enthusiasts that share your passion and interest in web security
    • Uncover, discuss, exploit and report critical and complex vulnerabilities in popular open source web applications (see
    • Research new and existing vulnerability types as well as exploitation techniques
    • Automate the detection of vulnerabilities in well-known applications by using our best-in-class code analysis technology 
    • Share your research and findings with the worldwide community by writing blog posts or presenting at international conferences

The skills you will demonstrate

    • You have a proven track record of code review to find critical security vulnerabilities in web applications
    • You have a deep understanding of major security vulnerability types, how to spot these in source code, and how to exploit them with different techniques
    • You have solid programming skills in at least one of the following languages: Java, JavaScript, C#, Python or PHP
    • You are passionate, creative, and methodical when auditing new source code autonomously and you can think outside the box
    • You care about professional and responsible disclosure of security vulnerabilities to the affected vendor
    • You are fluent in English, both written and spoken, and are able to explain complex security concepts in a structured and understandable way
    • Ideally, you already published your work in form of a blog post or conference presentation
Words from the team

The Security R&D team got established at SonarSource with the acquisition of RIPS Technologies. RIPS was known as a technology leader in static application security testing and for its in-depth web security research. At SonarSource, we are continuing these efforts to provide best-in-class technology and research with joint forces and knowledge.

Join us in this fun adventure and take a unique opportunity to learn and grow together!

Why you will love it here

• We value a safe work culture - founded in respect, kindness, and the right to fail.
• We hire great people - we value communication skills as much as technical prowes and we strive to create a work enviornment that allows for everyone to succeed and feel empowered to do their best work. Our 500+ SonarSourcers from 35 different nationalities can relate!
• Work-life balance - a healthy work-life balance is very important at Sonar. This is reflected in our hybrid work policy (2-3 days/week in the office).
• Flexible hours - we schedule our days in order to be effective at work, while also being able to enjoy life’s important moments.
• We promote continuous learning - in an ever-changing industry, learning new skills is the key to growth and success! We're happy to support all employees in this journey if desired. 

What we do

As Home of Clean Code, Sonar is the ultimate solution to achieving Clean Code for developers and organizations alike. 

The company was formed to develop the open-source tool SonarQube, which has since become the go-to standard in code quality management. We strive every day to pave the way for developers, tackling the toughest issues head-on and pushing the limits of what’s possible. 

Who we are

At Sonar we believe in people, dedication, and innovation. We’re a team of problem solvers who are passionate and relentless in their respective missions. We want to work with people who are ready and willing to fasten their seat belts and be part of an incredible ride! 

Our Core Values are: Smarter Together, Excellence, Innovation, and Delivery. They reflect our unique culture and we expect them to help shape and positively strengthen our organization. 

If you want to learn more about our culture, check out our blog post.

Join us; we’ll be smarter and stronger together!

Sonar is an equal opportunity employer and is committed to treating every employee with equal respect and fairness. We maintain a zero-tolerance policy toward any form of discrimination. All candidates will receive equal consideration for employment without regard to race, color, religion, sex, sexual orientation, gender identity, national origin, citizenship, age, veteran status, disability, or any other legally protected status.